GitHub Actions allows for parallel job execution to enhance workflow efficiency. By employing the "parallel" keyword, multiple jobs run concurrently, reducing task completion times. The article explores the maximum number of parallel jobs,
How to Run Parallel Jobs in GitHub Actions
GitHub Actions is a powerful tool for automating your software development workflow. One of the features that makes GitHub Actions so powerful is the ability to run parallel jobs. This can be a huge time-saver for tasks that can be broken down into smaller, independent steps.
To run parallel jobs in GitHub Actions, you need to use the parallel
keyword in your workflow file. The parallel
keyword takes a list of job names as its argument. For example, the following workflow file will run two jobs, job1
and job2
, in parallel:
name: My Workflow on: [push] jobs: job1: runs-on: ubuntu-latest steps: - echo "Hello from job1!" job2: runs-on: ubuntu-latest steps: - echo "Hello from job2!"
When this workflow is run, both job1
and job2
will start running at the same time. Once both jobs have completed successfully, the workflow will complete.
How Many Simultaneous Parallel Jobs Can Be Run in GitHub Actions?
The number of simultaneous parallel jobs that can be run in GitHub Actions depends on the type of runner that you are using. For self-hosted runners, the maximum number of parallel jobs that can be run is equal to the number of CPUs on the runner. For GitHub-hosted runners, the maximum number of parallel jobs that can be run is 20.
Can Parallel Jobs in GitHub Actions Share the Same Secrets?
Yes, parallel jobs in GitHub Actions can share the same secrets. To share secrets between parallel jobs, you can use the secrets
context. The secrets
context is a dictionary that contains all of the secrets that are available to the workflow.
To access the secrets
context in a job, you can use the secrets
keyword. For example, the following job will print the value of the MY_SECRET
secret:
name: My Job on: [push] jobs: job1: runs-on: ubuntu-latest steps: - echo "The value of MY_SECRET is: ${{ secrets.MY_SECRET }}"
How to Debug Parallel Jobs in GitHub Actions?
There are a few different ways to debug parallel jobs in GitHub Actions. One way is to use the actions/runner-debug
action. This action will print a lot of useful information about the runner, including the environment variables that are available to jobs.
To use the actions/runner-debug
action, add the following to your workflow file:
name: My Workflow on: [push] jobs: job1: runs-on: ubuntu-latest steps: - uses: actions/runner-debug@v1
Once you have added the actions/runner-debug
action to your workflow file, you can run the workflow and see the output in the GitHub Actions logs.
Another way to debug parallel jobs in GitHub Actions is to use the -vv
flag when running the github-actions
CLI. This flag will print a lot of additional information about the workflow, including the steps that are being executed and the resources that are being used.
To use the -vv
flag, run the following command:
<code>github-actions -vv run workflow.yaml</code>
The output of the -vv
flag can be helpful for troubleshooting issues with parallel jobs.
The above is the detailed content of how to run parallel jobs in github actions. For more information, please follow other related articles on the PHP Chinese website!

This article provides a guide to Git management, covering GUI tools (Sourcetree, GitKraken, etc.), essential commands (git init, git clone, git add, git commit, etc.), branch management best practices (feature branches, pull requests), and merge con

This guide explains how to push a single Git commit to a remote branch. It details using a temporary branch to isolate the commit, pushing this branch to the remote, and then optionally deleting the temporary branch. This method avoids conflicts and

This article addresses common Git commit failures. It details troubleshooting steps for issues like untracked files, unstaged changes, merge conflicts, and pre-commit hooks. Solutions and preventative measures are provided to ensure smoother Git wo

This article details methods for viewing Git commit content. It focuses on using git show to display commit messages, author info, and changes (diffs), git log -p for multiple commits' diffs, and cautions against directly checking out commits. Alt

This article explains the difference between Git's commit and push commands. git commit saves changes locally, while git push uploads these committed changes to a remote repository. The article highlights the importance of understanding this distin

This article explains the distinct roles of git add and git commit in Git. git add stages changes, preparing them for inclusion in the next commit, while git commit saves the staged changes to the repository's history. This two-step process enables

This article introduces Git, a distributed version control system. It highlights Git's advantages over centralized systems, such as offline capabilities and efficient branching/merging for enhanced collaboration. The article also details learning r

This beginner's guide introduces Git, a version control system. It covers basic commands (init, add, commit, status, log, branch, checkout, merge, push, pull) and resolving merge conflicts. Best practices for efficient Git use, including clear comm


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Dreamweaver CS6
Visual web development tools

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
